We've released a mandatory update for Team Fortress 2. The notes for the update are below. The new version number is 3780793.

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- Fixed a bug related to changing teams that caused various issues related to weapon projectiles, Engineer buildings and game modes- Fixed using the wrong thumbnail images for pass_district, pass_timbertown, and pl_swiftwater- Fixed the developer commentary audio files not being played properly- Fixed not being able to taunt with the Cleaner's Carbine- Added the LBTF2 6v6 Season 14 tournament medals- Added an option to hide the 'View Promotional Codes' button in the main menu - Can be toggled in the Adv. Options menu under the Miscellaneous Options section- Updated the models/materials for the Special Snowflake 2016 and the Gift of Giving 2016 community medals- Updated Mann vs. Machine mode - Fixed a case where late-joining a Mann Up match during the final wave could result in erroneously receiving a ten minute cooldown - Fixed a bug causing Invader's buildings to blow up if another Invader building of the same type is destroyed after the Engineer has died